1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a6c7144178e0dec608b95be36b225d840561b39d16559ec0f5332d79cda823e. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d665be96-c054-404b-a3af-be712ef6618f.json and https://artists.proofprofile.net/proofs/artist/d665be96-c054-404b-a3af-be712ef6618f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Presentando a La Orquesta Música Maravillosa
Música Maravillosa Vol. 17 "Boleros Inmortales"
Musica Maravillosa Vol. 13 "Concierto en Bolero"
Música Maravillosa Vol. 14 "Peter Borman Swing Usa"
Música Maravillosa Vol. 15 "Inolvidables de Norte América"
Musica Maravillosa Vol. 8 Salón de Baile
Musica Maravillosa Vol. 19 Recordando Melodias
Per Qualche Dollaro In Piu 14 Famous Themes Of The West
Musica Maravillosa Exitos en Guitarras para Soñar
Musica Maravillosa Vol. 24 Guitarras para Soñar
The Best Of Synthesizer 20 Golden Hits Vol. 1
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fa428fc2fa0135cf5777da0df86d81df3d5e5df186075ee3c82dd5ca0be1916. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1420937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d6ff21a57713205e0f95e90608d9dc46fae513047ae8cdde6e064d8894afb80. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1420940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19ae7589c752481674dd291649bc43043fca59478cab715c29734d0759ca0b84. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1420941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142cad67e03ccae91971ee898d9a3705547bf94433597d595a8452c189102eb0. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1420942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c260b1620abd095a77849396ab35df2dde7b2d52ba363556ab8fda0be2182f7. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1420943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b35a0bffc96e77f5b4dbb57bbc37e9c987721ce3454c836bb3cf717be688e88. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1420946.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc65add68636cfe1c1336067afd70b389ff2d995b7bca684f753fbacb286cdb58. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1420948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35baa9ae74ed4225e298f66b56c8a2e7df48d16ebd92732ed4e60e86adbaed16. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1420949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x608f5e9aa121a45a4e5d0171200ca77bc62d7daaa88aa026e6d94f8679510063. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1475405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c50d68206abdae8969578cd82a3a6e2f7aa965675022ad6937a1ae5b901a5d9. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1478501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x653d2e208860760027931a24fb82daa6556f877e7ea362a55e7a1b7716a90d38. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T02:17:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21426374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdc5b26d747240e6212391641a481f36dd1450202ebd71ee200a03ff19ab1094. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41474837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3acce1f47b32f81fd16ccefafa8d2b12a4f176eae4176e82f7967d30dd16e4d. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41474839.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6fb869af267c14444b32deddd5faea02b6c4d7a9880a31d9a11e328e18ff954. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41474841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bb9b2ac9945a0e0b917644f1ea5d7c4666f4b818e6b6942c6d9deda0bba6036. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41474843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9e11d09ecbf00576bf6b42eb46da504e6c81515f4f6046eae9d0ce52ba12e68. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T04:30:31Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41475387.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x204a48bfe18ffd8cd9324240d3eaa9e0846d7e4cd2364cf87b6e611a31e2b5c8. Chain 2 (Bitcoin): anchored in block 958963 (2026-07-21T04:02:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41475388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x069f736af3a94b0c754986c27286c38dcd5e321b4cea37ae9dec538c4cae9331. Chain 2 (Bitcoin): anchored in block 959061 (2026-07-21T21:34:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM4TW1511127.
The Music Of Brian Adams Instrumental Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53fa850e1ce3c71782e043a4ba3024b0a9f03f192ea19961b6f93b6ecfbd83fe. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1544008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb65daffd154d8a522dc633cbee0cad4e2b0753c36725352a744e8513ee08f1e. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1545916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c7a09608b43885b9a7c67c7ec12f65c5bacd85b193a1f5de3a440a5cafa892. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6N21534638.
The Music Of Elton John Instrumental Hits
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b8ecffac744f12ab4505eb5b7a79f1e45e9be1209031bec496654fb58087b63. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41517175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21a217f39eb47e0a764851a7ce1810a5a288d9b1ad82f2618486a92fe9a15f0. Chain 2 (Bitcoin): anchored in block 958594 (2026-07-18T18:05:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x592151df59635bf5c130757958e1059daa72fef26421d27ca5873542603c4f74. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x916f6cd0ad41452534d2177e702d8056dbf8004fe928ffcbe0c6555fd97994b1. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61b66ff4c6fc8f1abf794d89653c437a5031a88af3f6933b01423ae759e1e16a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e4c91c2ec78880c8d08053606d6af440c30d27a503d7bf1cac3eac7d3d9e3a5. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528055.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08809f54f5fdf6fd17bb0e13417c65800424ef6778d07db1ec5c2678b5121197. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T11:08:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9e66c35486455c7ebb60329f837ed6dfadf088c9ef7f969fa45cc62aa77594. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a0334ac9227391643fe20d68c1a2e69791b49316336433910510fadfc8fc37c. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528061.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5eedda3d9c0d0840f7fe88601d1632a9cb35a00351090cf29e617945ff78931. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe95dde3a7cb59c74061f9be95106a8651cce1c6c3cfd755d2bea09a0b29e2494. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa43640f5cadb29989f60501a24166169973a41837d4970eb4d5e85e8032f78f. Chain 2 (Bitcoin): anchored in block 958202 (2026-07-15T21:23:21Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x038abfdc017fbb28e7ad63e0eeeded0a1b1a02f9e443237274d816e45f1e5a41. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8580d9e038757c5afbdd0e6665a42a117c4e4e7b293bd19b5e468f3933e0c705. Chain 2 (Bitcoin): anchored in block 958670 (2026-07-19T05:26:23Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528079.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0ece599b5f13462ca38beb1b1c0e33dd675d6f6bbaae24e12530d0c46e72599. Chain 2 (Bitcoin): anchored in block 959084 (2026-07-22T00:50:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41528080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12767a0f949ffce9a741343c3a6dc38cfc27caa81aa7b8223cdbe839cc6dc74e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6P41535317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x361d57251506523eb8f14ee7cb9c4e70af56096c54148da4f332d303a0334725. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281509754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2effc355919a75d4540144e75ab845ef3a8bc11e8f620fa1f82b9f0fd850a0f6. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T18:54:07Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM7281509755.
Música Maravillosa para Gente Maravillosa Nueva Recopilación Vol. X